{"id":"F2006B06145","name":"AD/PC-6/41 - Rudder Pedal Supports","slug":"ad-pc-6-41-rudder-pedal-supports","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46939,"registerId":"commonwealth-F2006B06145-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PC-6/41 - Rudder Pedal Supports","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Pilatus Porter PC-6 Series Aeroplanes\n\n \n\nAD/PC-6/41 Rudder Pedal Supports 5/95\n\nApplicability: All PC-6 aircraft S/N 001 to 824 inclusive fitted with steel rudder pedal support tube P/N 6232.0196.00.\n\n \n\nRequirement: Visually inspect the rudder pedal support for cracks using a 10X glass. Inspect in accordance with Pilatus Service Bulletin (SB) PC-6-A-162, Accomplishment Instructions A(2).\n\n \n\nNote: Swiss FOCA AD HB 89-301 refers.\n\n \n\nCompliance: Initially inspect within 5 hours time in service from 15 April 1995. Re-inspect at intervals not to exceed 100 hours time in service.\n\n \n\nBackground:  Cracking has been reported on in-service aircraft. Failure of the rudder pedal support tube could result in a reduction in control of the aircraft.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD is tightly targeted to PC-6 airframes S/N 001–824 fitted with the listed steel rudder pedal support tube and mandates inspections to detect cracking. This scope aligns with the stated background (reported cracking and potential control reduction) and does not expand beyond addressing that specific defect (Applicability; Requirement; Compliance; Background)."},"complexity_factors":["Narrow, specific applicability (only PC-6 S/N 001–824 with P/N 6232.0196.00) reduces legal scope but requires operators to confirm parts and serial numbers (Applicability).","Immediate short deadline for initial compliance (within 5 hours TIS from 15 April 1995) creates operational/logistical pressure on operators and maintenance providers (Compliance).","Ongoing recurrent inspections (every 100 hours TIS) impose a recurring maintenance scheduling and tracking burden (Compliance).","Dependence on an external technical document (Pilatus Service Bulletin PC-6-A-162 A(2)) adds procedural dependency and may require access to vendor instructions (Requirement).","Simple technical method (visual inspection using 10× glass) lowers technical complexity but still requires competent personnel and adequate inspection conditions (Requirement).","High safety consequence if non-compliant: reported cracking and potential loss/reduction of aircraft control increases urgency and enforcement relevance (Background).","Administrative verification needed to determine which aircraft are fitted with the specified part number and to record inspection compliance (Applicability & Compliance)."],"plain_english_summary":"This airworthiness directive requires owners/operators of Pilatus PC-6 aeroplanes S/N 001–824 fitted with steel rudder pedal support tube P/N 6232.0196.00 to inspect the rudder pedal support for cracks with a 10× magnifier, following Pilatus Service Bulletin PC-6-A-162 A(2). The first inspection must occur within 5 hours time in service from 15 April 1995 and thereafter at intervals not exceeding 100 hours. It matters because cracking has been reported and failure could reduce control of the aircraft."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive focused on a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of mandating inspection for cracked rudder pedal supports."},"complexity_factors":["Single, specific aircraft type and serial number range","Only one defined part number to identify affected aircraft","Straightforward inspection requirement with clear reference to external technical document (Service Bulletin)","Simple compliance timeline: initial inspection + recurring intervals","No nested conditions, exceptions, or cross-references to other legislation","Total length is approximately 150 words of substantive content"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for a specific type of aircraft.\n\n**Who it affects:** Owners and operators of Pilatus Porter PC-6 aircraft with serial numbers 001 to 824 that have a particular steel rudder pedal support tube installed (part number 6232.0196.00).\n\n**What it requires:**\n- **Inspection:** You must visually check the rudder pedal support for cracks using a 10x magnifying glass (a \"10X glass\").\n- **How:** Follow the specific instructions in Pilatus Service Bulletin PC-6-A-162, section A(2).\n- **When:** \n  - First inspection: within 5 hours of flying time after 15 April 1995\n  - Repeat inspections: every 100 hours of flying time thereafter\n\n**Why it matters:** Cracks have been found in these parts on aircraft already in use. If the rudder pedal support tube breaks, the pilot could lose some ability to steer the aircraft using the rudder pedals — a serious safety risk.\n\n**Note:** This references a similar safety notice from the Swiss aviation authority (Swiss FOCA AD HB 89-301), showing this was a known international issue."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pc-6-41-rudder-pedal-supports","history":"/api/acts/ad-pc-6-41-rudder-pedal-supports/history","analysis":"/api/acts/ad-pc-6-41-rudder-pedal-supports/analysis","conflicts":"/api/acts/ad-pc-6-41-rudder-pedal-supports/conflicts","importantCases":"/api/acts/ad-pc-6-41-rudder-pedal-supports/important-cases","documents":"/api/acts/ad-pc-6-41-rudder-pedal-supports/documents"}}